package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@Slf4j
@Api(tags = "菜品管理")
@RequestMapping("/admin/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品:{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);
        //清除对应的缓存
        String key="dish_"+dishDTO.getCategoryId();
//        redisTemplate.delete(key);
        cleanCache(key);
        return Result.success();
    }

    /**
     * 分页查询菜品
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("要分页查询的数据：{}",dishPageQueryDTO);
        PageResult pageResult= dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }


    /**
     * 批量删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("批量删除")
    public Result delete(@RequestParam List<Long> ids){
        log.info("批量删除菜品：{}",ids);
        dishService.deletBatch(ids);
        //全部清理缓存
//        Set keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据ID查询菜品
     * @param id
     * @return
     */
    @GetMapping("{id}")
    @ApiOperation("根据ID查询菜品")
    public Result<DishVO> selectById(@PathVariable Long id){
        log.info("要查询的菜品ID：{}",id);
        DishVO dishVO=dishService.selectById(id);
        return Result.success(dishVO);
    }

    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("要修改的菜品：{}",dishDTO);
        dishService.update(dishDTO);
        //全部清理缓存
//        Set keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    /**
     * 清除缓存的方法
     * @param pattern
     */
    private void cleanCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
